Casualties unknown

Cessna 172RG Breakup During Flight Near Training Area (N6439)

Buckeye, AZ, US

On March 16, 1991, a Cessna 172RG (registration N6439) operated by California Aviation was involved in an aviation accident near Buckeye, AZ. Investigators recorded the probable cause as: THE PILOT OF THE AIRPLANE EXCEEDING THE CERTIFICATED NEVER EXCEED VELOCITY. THE OVERLOADING OF THE WING ATTACHMENT FITTINGS WHILE MANEUVERING WAS A FACTOR IN THE ACCIDENT. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 5 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A Cessna 172RG rented by two pilots broke up in flight; wreckage scattered over half a mile. The left wing separated upward, striking and fracturing the cabin and right wing.

Accident Overview

Two pilots returned to the area where they had previously obtained their pilot training and rented a Cessna 172RG to revisit the training areas. The airplane's wreckage was later found in a semi-remote area, strewn over a half mile.

Examination Findings

Examination of the wreckage disclosed that the left wing's wing-to-fuselage attach fitting separated in an upward direction. The fracture surfaces displayed positive overload characteristics. The upper cabin section and right wing broke up after being struck by the left wing during the inflight breakup.

Weather Conditions

Weather studies revealed that visual meteorological conditions prevailed at the time of the accident.

Aircraft Information

The airplane is not certificated for aerobatic flight.

Frequently asked questions

What happened in the 16 Mar 1991 Cessna 172RG accident near Buckeye, AZ?

A Cessna 172RG rented by two pilots broke up in flight; wreckage scattered over half a mile. The left wing separated upward, striking and fracturing the cabin and right wing.

What aircraft was involved and where did it happen?

The accident on 16 Mar 1991 involved a Cessna 172RG, registration N6439, operated by California Aviation, at Buckeye, AZ.

What was the probable cause of the accident?

THE PILOT OF THE AIRPLANE EXCEEDING THE CERTIFICATED NEVER EXCEED VELOCITY. THE OVERLOADING OF THE WING ATTACHMENT FITTINGS WHILE MANEUVERING WAS A FACTOR IN THE ACCIDENT.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X16616. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.